Department of Orthodontics, School of Dentistry, Jordan University of Science and Technology, Irbid-Jordan.
Angle Orthod. 2010 Jan;80(1):65-71. doi: 10.2319/021209-98.1.
To test the hypothesis that there is no relationship between static occlusion and dynamic occlusion.
The relationship between static and dynamic occlusion was investigated in a sample of 94 dental students (39 males and 55 females) with an age range of 21-30 years. Static occlusion was determined by intraoral examination. Dynamic occlusion was determined in regulated lateral (0.5 mm and 3 mm lateral to the intercuspal position) and protrusive movements of the mandible by intraoral examination with the aid of shimstock.
At the 0.5 mm lateral excursion, 24.5% had bilateral group function and 12.7% had bilateral canine guidance. At the 3 mm positions, the guidance pattern changed to a predominantly canine guidance. Fifty percent of subjects had bilateral canine guidance, and only 8.8% had bilateral group function. In terms of the anterior guidance pattern, a predominant anterior contact with posterior disocclusion (77.5%) was noted. Examination of the relationship between static and dynamic occlusions revealed that at the 0.5 mm position, the pattern of dynamic occlusion was different in relation to various static occlusion features but without reaching a significant level. While at the 3 mm position, the pattern of dynamic occlusion was significantly affected by incisor relationship. The distribution of protrusive excursion patterns was significantly influenced by incisor, canine, and molar relationships.
The hypothesis is rejected. An association exists between dynamic occlusion and different aspects of static occlusion.
验证静态咬合与动态咬合之间无关系的假设。
在一个由 94 名年龄在 21-30 岁之间的牙科学生（男 39 名，女 55 名）组成的样本中，研究了静态和动态咬合之间的关系。通过口腔内检查确定静态咬合，通过口腔内检查确定调节侧方（牙尖交错位侧向 0.5mm 和 3mm）和下颌前伸运动中的动态咬合，并借助合板进行辅助。
在 0.5mm 的侧方运动中，24.5%的患者有双侧组牙功能，12.7%的患者有双侧尖牙引导。在 3mm 的位置，引导模式转变为主要的尖牙引导。50%的患者有双侧尖牙引导，只有 8.8%的患者有双侧组牙功能。在前导牙合模式方面，观察到主要前牙接触伴后牙牙合干扰（77.5%）。检查静态和动态咬合之间的关系发现，在 0.5mm 位置，动态咬合模式与各种静态咬合特征有关，但没有达到显著水平。而在 3mm 位置，动态咬合模式受切牙关系显著影响。前伸运动模式的分布受切牙、尖牙和磨牙关系显著影响。
该假设被否定。动态咬合与静态咬合的不同方面存在关联。
